Welcome to the Haskell Interlude. Today, Matti and Mike talk to Jeffrey Young. Jeff has had a long history of working with Haskell and on ghc itself. We talk about what makes Haskell so compelling, the good and bad of highly optimized code and the beauty of well-modularized code, how to get into compiler development, and how to benefit from Domain-Driven Design. Jeff is currently on the job market - if you want to get in touch, email him at mailto:[email protected].